Resilient-tired wheel.



PATENTED JUNE 20, 1905.

J. PARTINGTON. RESILIENT TIRED WHEEL.

APPLICATION FILED JAN. 10. 1905.

2 SHEETS-SHEET 1.

PATENTED JUNE 20, 1905. J. PARTINGTON.

RESILIENT TIRED WHEEL.

APPLICATION FILED JAN-10. 1905.

2 SHEETS-SHEET 2.

UNTTED STATES Patented June 20, 1905.

PATENT ()EEICE.

RES ILIENT-TIRED. WHEEL.

SPECIFICATION forming part of Letters Patent No. 792,921, dated June 20,1905.

Application filed January 10, 1905. Serial No. 240.416.

T0 (I/ZZ whom, it may concern.-

Be it known that I, JOHN PARTINGTON, a subject of the King of GreatBritain and Ireland, and a resident of Dallam House, Saltaire, in thecounty of York, England, have invented certain Improvements in andRelating to Resilient-Tired Wheels, (for which I have made applicationfor a patent in Great Britain, No. 26,400, dated December 5, 1904,) ofwhich the following is a specification.

This invention relates to certain improvements in connection with wheelssuitable for motor-cars and like vehicles; and the object is toconstruct such wheels in a manner intended to remove the possibility ofdanger of damage by puncture, surface cutting, or bursting of thepneumatic tube, also to prevent all creeping of the tube around thewheel circumference, and thereby reduce the wear and tear, and tocombine with the wheel-rim renewable tread-blocks so arranged that theyare applicable for use in connection with pneumatic tubes for obtainingresilience, the treadbiocks being so constructed and applied that sideslipping or skidding is obviated and slipping prevented whenhill-climbing.

In describing my invention in detail reference is made to theaccompanying sheets of drawings, in which Figure 1 represents anelevation of a portion of a motor-car or like wheel arranged inaccordance with my invention, part of the wheel-disk being removed formore clearly showing the tread-blocks. Fig. 2 is a section throughwheel-rim, showing ferrule and distance-piece in section. Fig. 3 is asimilar section showing the invention applied to a wheel of ordinaryconstruction having fellies and spokes. Fig. 4: is a section showing acomposite tread-block. Fig. 5 is a view showing supplementary provisionfor keeping grit and the like from base of tread-blocks and pneumatictube. Fig. 6 is a side elevation of a portion of a wheel with front diskremoved for more clearly showing tread-blocks provided with protectingside plates. Fig. 7 is an end view of block; and Fig. 8, a side view ofcomposite tread-blocks, such as shown by Fig. 4, with pieces of flexibletread inserted.

The wheel may be formed of two metal disks 1, attached to a hub in aconvenient manner and of a configuration at the rim for the reception,retention, and protection of a pneumatic tube 2, a ring of wood or othermaterial 3 being placed between the disks to form the bottom of cavityand to support the pneumatic tube 2 placed therein. Cavities 4 ofconvenient length and depth are cut at certain distances apart in ring3, and into each cavity 4 a corresponding stop-piece 5 engages. Suchstop-pieces project from and form part of the pneumatic cushion-tube 2,which by engaging with the cavities positively keep the tube 2 in itsrelative position with regard to ring 3, by which creeping of tube 2around said ring is prevented.

The disks 1 are bent over at the circumference 6, and from this pointthey extend backward toward the wheel-axle, and the edge of each diskforms a flange or shoulder 7 within the cavity between the disks somedistance from the circumference of same. The internal diameters of theseflanges are the same. The sides of the disks within the annular space ofsaid cavity between flanges 7 and the circumference 6 are flat and thespace parallel, and into this parallel space are placed renewabletread-blocks 8, composed entirely of india-rubber or like flexiblematerial, or partly so, as hereinafter described. Each tread-block,whether composed entirely or partly of flexible material, has sideprojections 9 at base, adapted to engage with the beforementionedflanges and also project into recesses at base of filled-in spaces 10,one on each side, as shown.

The tread-blocks 8 when placed in position between disks 1 are thereretained by the side projections 9, and at each end of tread-blocks arecess 11 is formed of such shape that when two blocks come together therecesses form an oblongopening 11 (seeFig. 1) for the reception of ametallic ferrule 12 of like shape, adapted to fill same and slide over adistance-piece 13, secured between the disks by a bolt 14, screwed tightfor keeping the disks rigid and beforementioned annular space betweensame parallel, and by the ferrules being formed oblong and of a lengthto fill the annular parallel space between the disks sufficiently tight,but

free to slide therein, they assist in supporting and keeping thetread-blocks 8 in position when traveling, but allow them to yieldradially under pressure.

The sides of each tread-block 8, of indiarubber or thelike, in contactwith the turnedover disks in annular parallel space may be faced withhard wearing material, such as metal plates 8, extending the length ofeach block'and of suitable depth and shape at 8 to extend into recesses11 at each end of block 8. The extensions 8 meetingin the center act asa ferrule and protect the india-rubber the same as is the case whenferrules 12 are applied.

The base of tread-blocks under openings l1 are in contact with eachotherthat is to say, they are end to end; but outside the ferrules orthe like extending to the circumference of blocks an open space 15 isleft.

The tread-blocks may be formed with a metallic base 8 such as shown byFigs' i and 8, and applied to the wheel-rim in the same manner as beforedescribed. These are faced at tread with flexible material 8, secured tothe metallic portion in a convenient manner, such as shown by Fig. 4. Aflange 16 is formed at one end of metallic base for keeping the flexibletread in position, the latter being of such length as toleave an openspace between similar to 15 before described.

When pressure comes upon the blocks constructed and applied in themanner described, the ferrules 12 or the like, along with the affectedblocks, slide in a radial direction, re silience being given by thepneumatic cushion-tube 2, and when pressure is removed the blocks areforced back until the side projections 9 engage with the flanges 7 andinserted packing within filled-in spaces 10, and by leaving an openspace 15 between the blocks a better .grip, and thereby less slipping onthe ground, is obtained than is the case with wheels having a continuoustread surface similar to a solid tire.

By forming the tread with sectional blocks and leaving open spaces 15,as described, side slipping or skidding when turning to the right orleft is prevented, and by the engagement of stop-pieces 5 with cavities4 creeping of thedpneum'atic tube 2 around wheel is obviate By combiningtread-blocks and disks as described and inserting a channeled flexiblecover 17 as shown, between blocks and pneumatic tube grit, mud, andwater are to a great extent, if not entirely, prevented getting into theinterior in contact with tube 2; but as a further precaution for keepingthe surfaces between the sides of blocks 8 or plates 8 and insides ofdisks free of dust and the like an additional plate 18 maybe inserted oneach side, as shown by Fig. 5, and held in the required position by thedistance-pieces 13 and bolts. The exposed portions of plates are bent at18 for the reception of and holding in position an .indiarubber or likeflexible packing-cord 19, against the side of treadblocks, thusassisting to keep away from the interior, moisture, grit, and otherforeign matter.

What I claim as my invention is 1; In a pneumatic-tired wheel, thecombination with opposing disks 1 on the periphery of the wheel, saiddisks having their outer edges bent inwardly and backwardly so as toform internal flanges 7, a pneumatic tire held between said disks, achanneled flexible cover 17 resting on said tire and sectionaltreadblocks having radial projections 9, said blocks resting on thechannel-cover with their projections engaging the flanges 7.

2. In a pneumatic-tired wheel, the combination with opposing disks 1,said disks having their outer edges bent inwardly and backwardly so asto form internal flanges 7 distance-pieces between the disks, means forholding said pieces in place sectional treadblocks held movably inbetween the disks by said distance-pieces, and projections on the lowerpart of said blocks engaging with the flanges 7, substantially asdescribed.

3. In a pneumatictired wheel, the combination with opposing disks 1,sectional treadblocks located between said disks each of said blockshaving an oblong recess on each end thereof which forms with theadjacent block an oblong opening and means secured to the disks passingthrough said opening so as to movably hold the blocks in place,substantially as described.

4. In a pneumatic-tired wheel, the combination with the disks 1 securedto the wheel, sectional tread blocks located between the disks, meansfor holding said blocks movably in place, packing-cords 19 located atthe outer junction of the blocks and disks and means for holding thecords in place.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

JOHN PARTINGTON.

Witnesses:

E. A. WELLS, W. ILLINGWORTI-I.

